api.twitter.com/1.1/direct_messages.json

<?php

class TwitterBot
{
    protected $url_update = 'https://api.twitter.com/1.1/statuses/update.json';
    protected $url_follow = 'https://api.twitter.com/1.1/friendships/create.json'; // Added
    protected $url_dm = 'https://api.twitter.com/1.1/direct_messages.json'; // Added
    protected $url_search = 'https://api.twitter.com/1.1/search/tweets.json?q=%s&result_type=recent&count=50';
    protected $url_verify = 'https://api.twitter.com/1.1/account/verify_credentials.json';
    protected $url_token = 'https://twitter.com/oauth/request_token';
    protected $url_token_access = 'https://twitter.com/oauth/access_token';
    protected $url_auth = 'http://twitter.com/oauth/authorize';
    private $oauth;

    private $tweets = array();
    private $screenName;

    public function __construct($key, $secret)
    {
        $this->oauth = new OAuth($key, $secret, OAUTH_SIG_METHOD_HMACSHA1, OAUTH_AUTH_TYPE_URI);
        $this->oauth->disableSSLChecks();
    }

    public function setToken($token, $secret)
    {
        $this->oauth->setToken($token, $secret);
    }

    public function send($str)
    {
        $this->oauth->fetch($this->url_update, array( 'status' => $str), OAUTH_HTTP_METHOD_POST);
    }

    public function search($terms,$regex,$type)
    {
        $this->tweets[] = array('terms' => $terms,'regex' => $regex,'type' => $type);
    }

    public function follow()
    {
        if ($this->verifyAccountWorks())
        {
            foreach ($this->tweets as $key => $t)
            {
                $this->oauth->fetch(sprintf($this->url_search, urlencode($t['terms'][0])));
                $search_var = json_decode($this->oauth->getLastResponse());
                if($search_var)
                {
                    $i = 0;
                    foreach ($search_var->statuses as $tweet)
                    {
                        if($tweet->is_quote_status) // Si le tweet est un rt, on ne prend pas
                        {
                            continue;
                        }

                        $name = $tweet->user->screen_name;
                        echo '<b><a style="color: red;" href="https://twitter.com/' . $name . '" target="_blank">@' . $name . '</a> :</b> <a style="color: black; text-decoration: none;" href="https://twitter.com/' . $name .
                                '/status/'.$tweet->id.'" target="_blank">'.$tweet->text.'</a><br /> ';

                        $this->oauth->fetch($this->url_follow, array('user_id' => $tweet->user->id_str, 'follow' => true), OAUTH_HTTP_METHOD_POST); // Follow du compte $tweet

                        // How to :

                        // RT : $this->oauth->fetch($this->url_retweet . $tweet->id_str . '.json');
                        // LIKE : $this->oauth->fetch($this->url_favorite, array('id' => $tweet->id_str));

                        // En rajoutant :

                        //protected $url_retweet = 'https://api.twitter.com/1.1/statuses/retweet/';
                        //protected $url_favorite = 'https://api.twitter.com/1.1/favorites/create.json';
                    }
                }
            }
        }
    }

    public function messages()
    {
        $since_id = $this->getSinceId();
        $max_id = $since_id;

        if ($this->verifyAccountWorks())
        {
            $req = $this->oauth->fetch($this->url_dm, $since_id, OAUTH_HTTP_METHOD_GET); // J'ai commencé à mettre le $since_id mais l'erreur ne vient pas de là elle était identique avant cet ajout
            echo $req;

            $dms = json_decode($req);
            foreach ($dms as $dm)
            {

            }
        }
    }

    public function getSinceId($file='since_id')
    {
        $since_id = @file_get_contents($file);
        if(!$since_id)
        {
            $since_id = 0;
        }
        return $since_id;
    }

    public function setSinceId($max_id=null,$file='since_id')
    {
        file_put_contents($file, $max_id);
    }

    private function verifyAccountWorks()
    {
        try
        {
            $this->oauth->fetch($this->url_verify, array(), OAUTH_HTTP_METHOD_GET);
            $response = json_decode($this->oauth->getLastResponse());
            $this->screenName = $response->screen_name;
            return true;
        }
        catch(Exception $ex)
        {
            return false;
        }
    }
}

?>